Related Experiment Video
Updated: Aug 7, 2026

Assessment of Sexual Behavior of Male Mice
Published on: March 5, 2020
The Circuit Party Men's Health Survey: findings and implications for gay and bisexual men
G Mansergh1, G N Colfax, G Marks
1Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, 1600 Clifton Rd, Mail Stop E-45, Atlanta, GA 30333, USA. gcm2@cdc.gov
Objectives:
This study examined characteristics of gay and bisexual men who attend circuit parties, frequency of and motivations for attending parties, drug use and sexual behavior during circuit party weekends, and use of risk reduction materials available at parties.
Methods:
A cross-sectional survey was conducted among 295 gay and bisexual men from the San Francisco Bay Area who had attended a circuit party in the previous year.
Results:
One fourth of the men reported a drug "overuse" incident in the previous year. Nearly all respondents reported use of drugs during circuit party weekends, including ecstasy (75%), ketamine (58%), crystal methamphetamine (36%), gamma hydroxybutyrate or gamma butyrolactone (25%), and Viagra (12%). Two thirds of the men reported having sex (oral or anal), 49% reported having anal sex, and 28% reported having unprotected anal sex during the 3-day period. An association was found between use of drugs and sexual risk behavior. Prevention materials were observed at party events by some men; however, relatively few men used the materials. Common motivations for attending the parties were "to listen to music and dance" and "to be with friends."
Conclusions:
Intensive, targeted health promotion efforts are needed for gay and bisexual men who attend circuit parties.
Related Concept Videos
Longitudinal Research
The Y Chromosome Determines Maleness
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...
Models of Health Promotion and Illness Prevention II
The agent-host-environment model states that disease results from...
Disorders of the Male Reproductive System
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
Lifestyle Factors and Health
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...
Amebiasis

